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Engine fan inop, how to diag?

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Old Jul 14, 2019 | 08:38 PM
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Ml350 bluetec
Engine fan inop, how to diag?
My engine fan doesnt operate / spin. No codes.

Ml350 bluetec 2010.

Is there a relay or module I should check or does this mean I need a new fan?
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Old Jul 15, 2019 | 12:26 PM
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Maj. Dundee
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2002 ML 320 & 2006 ML500



With the eng. running after 5 mins., check fuse #7 in the Eng. Compartment Pre-Fuse Box for 12v..
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Old Jul 15, 2019 | 01:22 PM
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Ml350 bluetec
Thanks. Will check.

Also tried to operate the fan with the scan tool and it failed to operate.
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Old Jul 16, 2019 | 12:00 AM
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Ml350 bluetec
Originally Posted by Maj. Dundee



With the eng. running after 5 mins., check fuse #7 in the Eng. Compartment Pre-Fuse Box for 12v..
After undoing the top clips I still cant open the box. How does it come off?
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Old Jul 16, 2019 | 03:36 AM
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2002 ML 320 & 2006 ML500
Here are the directions.
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File Type: pdf
R&I Fuse Box Front Prefuse..pdf (100.3 KB, 285 views)
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Old Jul 16, 2019 | 11:26 AM
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Ml350 bluetec
Originally Posted by Maj. Dundee
Here are the directions.
Thank you. I'm grateful for the instruction
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Old Jul 17, 2019 | 01:45 PM
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Ml350 bluetec
Fuses good. Replaced fan. Fan works. Thabk you for all your help
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Old Jan 26, 2025 | 12:48 AM
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Originally Posted by Maj. Dundee
Here are the directions.
Hi Major,
Is there a way to get the cover off without breaking the edges. The so called clips look so integrated into the body; it seems impossible to undo them. Thanks
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